baber/WOPTO huggingface dataset:
Patent GB-1421124-A (GB)
Title: Method for improving oil-water ratios of oil wells and gas- water ratios of gas wells
IPC: G03C11/08
Filed: 1973-05-31
Abstract: 1421124 Wells CALGON CORP 1 April 1974 [5 April 1973] 14412/74 Heading E1F The ratio of oil and/or gas to water issuing from a well bore is increased by injecting into the formation through the well bore an aqueous solution containing a copolymer of 2- acrylamido-2-methyl propyl sulphonic acid and acrylamide. The copolymer contains from 3 to 60 mole per cent of 2-acrylamido-2-methyl propyl sulphonic acid and from 40 to 97 mole per cent of acrylamide. The copolymer has a molecular weight greater than 100,000 and up to 50 per cent of the amide groups are hydrolysed to carboxylic acid groups.
Patent GB-206649-A (GB)
Title: Improvements in or relating to elevators and/or conveyors
IPC: B65G53/46
Filed: 1922-09-27
Abstract: 206,649. Woolgar, E. W. Sept. 27, 1922. Automatic-feed weighers.-In discharging-apparatus for pneumatic elevators in which the discharge is controlled by the action of the weight of the material on a movable hopper or chamber, the material is discharged into a hopper a provided with valves c normally permitting communication between the hopper and a chamber d which, when charged with a predetermined weight of material, descends, puts the chamber into communication with the atmosphere, and closes the valves c. The chamber is counterbalanced and its upper part normally seats tightly against a packing ring d<1> surrounding the neck b of the hopper. The valves c are closed during the downward movement by the action of the top of the chamber on bell-crank levers g.
Patent GB-389520-A (GB)
Title: Smelting sulphide ores to recover elemental sulphur therefrom
IPC: C01B17/06
Filed: 1931-09-18
Abstract: In a blast furnace method of smelting iron pyrites or other sulphide ore for the production of sulphur in which is employed an amount of coke insufficient to reduce the sulphur dioxide produced, the sulphur dioxide is brought into contact with sufficient hot sulphide to reduce it to sulphur within the furnace, contact being made first with molten, partially desulphurized pyrites and then with the unmelted pyrites of the charge.  A hot, dry blast of a temperature of 500 DEG  C. or more is employed and the amount of air is so controlled that the atmosphere above the charge is non-oxidizing.  A furnace of greater height than usual is employed and by feeding the charge more slowly than usual an abnormally elongated hot smelting zone is obtained.  Air is prevented from entering the top of the furnace by the use of suitable charging devices and the temperature in this region is maintained at 350-400 DEG  C. by regulating the depth of the charge.  The reaction is facilitated by the addition of lime or magnesia, preferably the latter, e.g. in the form of dolomitic lime, the minimum temperature for the reaction being thereby reduced.  The gases leaving the furnace may be passed through a dust collector or an electrostatic precipitator and then through a condenser.  Sulphur dioxide, hydrogen sulphide and carbon oxysulphide in the gases are treated to recover sulphur by passage over a catalyst such as porous alumina or bauxite, further sulphur dioxide being added if necessary, e.g. by adjustment of the blast.
Patent GB-954614-A (GB)
Title: Frame for lifting railway waggons
IPC: B61K5/00
Filed: 1962-07-09
Abstract: 954,614. Lifting rail vehicles. H. BRANDER. July 9, 1962, No. 26194/62. Heading B8E. To enable shunting operations to be carried out in a tunnel a waggon 10, Fig. 2, is engaged by arms 6 which in conjunction with slides 4, 5 on side members 1 of a frame 1, 2, 3 lift the waggon high enough for a train to be driven beneath it. The lifting may be effected by any known means, e.g. hydraulic rams, racks and pinions or wires and blocks. To transport the lifting frame the arms 6 are moved downwards into engagement with the top of a waggon, Fig. 3, thus raising the sides 1 from the ground. The sides 1 may be provided with levelling jacks. Flaps 7, 8, Fig. 4, when moved into the position shown form a working platform e.g. for a drilling machine or conveyer.
Patent GB-246595-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H23/12
Filed: 1924-11-04
Abstract: 246,595. Tucker, J. B. Nov. 4, 1924. Contacts.-In a tumbler switch, the current carrying contact member a and the non-current carrying member b are separately secured to an intermediate porcelain &c. insulating block c. The head of the screw d, which secures the member a to the block c, is located in a recess in the block, and a sheet of mica f is interposed between the block c and the member b. The member b may be perforated at b<2> so that the head of the screw d is visible through the mica f. In a modification the mica sheet is replaced by another insulating block which can be recessed to accommodate the head of the. screw instead of a recess being formed in the block c.
Patent GB-228230-A (GB)
Title: Improvements in pottery or like kilns
IPC: F27B9/16
Filed: 1923-10-20
Abstract: 228,230. Woodall-Duckham (1920), Ltd., (formerly Woodall, Duckham, & Jones (1920), Ltd.), and Duckham, Sir A. M. Oct. 20, 1923. Drawings to Specification. Enamelling; salt glazing of pottery &c. The ware is first heated up approximately to the glazing temperature, preferably out of contact with combustion products, and is then moved into an atmosphere of combustion products containing salt vapours and at the glazing temperature.
Patent GB-720645-A (GB)
Title: Improvements in or relating to record card controlled statistical machines
Inventor: GUTTRIDGE ERIC JOHN
IPC: G06K13/10
Filed: 1952-10-20
Abstract: 720,645. Statistical apparatus. VICKERS-ARMSTRONGS, Ltd. July 21, 1953 [Oct. 20, 1952], No. 26326/52. Class 106 (1). A record card controlled statistical machine having a support on which cards are superposed as they issue in succession from the machine is provided with an interrupter device to interrupt operation of the driving means, and a manually operable actuator spring-urged to a normally inactive position in which it is so disposed as to be engaged by a hand entering the path of the card support and thereby moved from its inactive position to operate the interrupter device, and being spring restored to permit continued operation of the driving means on removal of the operator's hand from the path. Cards issue from rollers 1, 2 on to a card support 23, the cards are deflected downwards by a plate 21 and are superposed so that the support 23 which is spring urged towards the plate 21 is pressed downwards to the extent of one card thickness each time a card is delivered to the support. When the stack of cards is to be removed from the support, the stack is grasped by the operator's hand, for which purpose there is provided a cut-away portion 24. The operator's hand engages the member 27 fastened to a rod 28 and causes movement of lever 31 to operate a switch 25, Fig. 4. The switch 25 breaks the circuit of the solenoid 14 associated with the clutch 10, causing the spring 32 to return the lever 11 into the path of the pawl lever 33, thus removing the pawl 9 from the driving plate 6. The member 27 is spring biased so that when the operator's hand is removed from the path of the card stack the member 27 returns to its former position and in doing so restores the circuit to solenoid 4 and the clutch 10 is re-engaged. Operation of the switch 25 to disengage the clutch is also effected when the card support 23 reaches a predetermined position. A roller 19 on the card support is arranged to engage a bell-crank lever 34 pivoted at 36, the other end of the bell-crank lever engages a portion 34 of the lever 31 causing a similar movement to that caused by operation of the member 27, thus operating switch 25 and disengaging the clutch 10 as described above.
Patent GB-444295-A (GB)
Title: Improvements in fuel injection pumps for internal combustion engines
IPC: F02M59/46
Filed: 1935-09-23
Abstract: 444,295. Fuel - injection pumps. DECKEL, F., 7, Waakirchnerstrasse, Munich, Germany. Sept. 23, 1935, Nos. 26329, 26330, and 26331. Convention dates, Sept. 22, 1934, April 20,1935, and May 27,1935. [Class 102 (i)] In a fuel-injection pump the suction valve 18 is of the mushroom type and together with the delivery valve 24 is in alignment with the plunger 7. The valve 18 is loaded by a spring positioned within the hollow stem and engaging a plate 22 which limits the valve opening. The delivery of the pump is terminated by the edge 11 uncovering a port 12 leading to a chamber 14 connected to the suction chamber 20 by restricted passages 21. The valves are housed in a housing 9 which in a modified form is in two parts. The stem of the valve 18 may be bored to provide a passage for the fuel passing from the pump to the delivery valve. Fig. 3 shows a modified form of suction valve wherein a spindle 28 passes through slots 29 in the valve stem and forms an abutment for the spring 18.
Patent GB-1540514-A (GB)
Title: Centrifugal governor for fine mechanical parts
IPC: G05D13/28
Filed: 1977-06-23
Abstract: The centrifugal brake governor has a brake drum (8) which is connected to the components (1, 2, 4) to be braked and which has an annular brake lining (10). Webs (15) which are radially flush at the end face are formed on a guide plate (16) which is connected via a gear mechanism to the components (1, 2, 4), is mounted on an axle (9) arranged centrally relative to the brake drum (8), and protrudes at least partially into the brake drum (8). Said webs serve as guide elements for two brake pads (11, 12) which are provided with corresponding grooves (13) and lie loosely in the brake drum (8). This centrifugal brake governor has a simple constructional shape and, as a result of avoiding the use of restoring springs, is also effective at small angular speeds. It is particularly suitable for use in coin-controlled timing devices. <IMAGE>
Patent GB-418616-A (GB)
Title: Improvements in or relating to the valve mechanism of four-stroke-cycle internal-combustion engines
IPC: F01L5/04
Filed: 1933-09-26
Abstract: 418,616. Valves; cylinders. BONFA, A., 608, Umbilo Road, Durban, Natal, South Africa. Sept. 26, 1933, No. 26424. [Classes 7 (ii) and 7 (vi).] In a four - stroke engine, a port 9 serving for both inlet and exhaust, and an auxiliary exhaust port 8 are controlled by a piston valve 7 surrounded by a sleeve valve 6 provided with packing rings 22, 23 arranged so as to be disposed above and below the combined port 9 during compression and explosion. The sleeve valve is formed with ports 13, 14 cooperating with the cylinder ports 8, 9, and has at the other side ports 15, 16 and 17 corresponding to an auxiliary exhaust port 10, inlet port 11, and main exhaust port 12. The piston valve is formed with passages 18, 19 and 20 serving respectively for auxiliary exhaust, inlet, and main exhaust. When the piston uncovers port 8, exhaust first takes place therethrough, and afterwards through port 9. The sleeve valve is formed with an extension 25 to shut off the auxiliary exhaust 10 from the crank case. The two valves are worked by rods 27, 28 attached as shown to the valves and worked by eccentrics set at 90‹ to each other. The invention is particularly applicable to engines having pistons with a varying stroke, as described in Specifications 346,592, 372,544, and 421,266. Specifications 19324/10, 5908/12, 7441/12, and. 119,720, [all in Class 7 (vi)), also are referred to.
Patent GB-808656-A (GB)
Title: Improvements relating to brazing and soldering alloys
IPC: B23K35/26
Filed: 1955-09-15
Abstract: A brazing or soldering alloy consists of 5-10 per cent by weight of Ti and/or Zr, 10-85 per cent by weight of one or more of Pb, Zn, Bi, Cd, In and Sn, and one or more of Cu, Ag, Ni in the following ranges; Cu 10-85 per cent, Ag 5-85 per cent, Ni 5-20 per cent.  The alloy is particularly for use in joining ceramic to metal or ceramic to ceramic or for metallizing ceramic surfaces prior to joining the ceramic to a metal or to another ceramic (see Groups XXII and XXXVI). Specification 756,588 is referred to.
Patent GB-1529554-A (GB)
Title: Low-alloy high-speed tool steel
IPC: C22C38/22
Filed: 1977-06-24
Abstract: 1529554 High speed tool steel FAGERSTA AB 24 June 1977 [9 July 1976] 26494/77 Heading C7A A high-speed tool steel consists in wt. per cent of: C 0À85-1À0, Si 0À4-1À0, Cr 1À5-3À0, Mo 4À0- 6À0, W 1À0-2À0, V 1À0-2À0, N 0À04-0À08, Fe the balance and impurities e.g. Co up to 1, Mn up to 0À4, S and P up to 0À03. The hardness/toughness ratio is optimum at about 2À5% Cr.
Patent GB-361026-A (GB)
Title: Process for the manufacture of yeast producing high yields
IPC: C12N1/18
Filed: 1930-09-05
Abstract: Yeast is prepared from a wort containing sugary material, assimilable nitrogen in the form of ammonium sulphate chloride, other yeast-nourishing salts and an excess amount of water.  The yeast is added and aerated with an excess amount of air whereby the components of the wort liberated during the operation are prevented from acidifying the wort to a point deleterious to the growth of the yeast.  Excess amount of water implies an amount of water of the order of 60 gallons for each 10 pounds of other ingredients in the wort and excess amount of air implies an amount of air of the order of 100 cubic feet of air per hour per gallon of wort.  Examples of the quantities of ingredients used are given.  Specification 292,202, [Class 14 (ii), Beverages &c.], is referred to.
Patent GB-984215-A (GB)
Title: Improvements in or relating to the mounting of contacts in electric switches e.g. for use in radio circuits
IPC: H01H11/06
Filed: 1961-07-22
Abstract: 984,215. Making electric switches. E. K. COLE Ltd., and A. E. KING. July 23, 1962 [July 22, 1961], No. 26635/61. Heading B3A. [Also in Division H2] At a an insulating carrier 1 to which contacts are to be fixed is inserted in a bending machine, so that slots in the carrier register with the upper surface 10 upon which are fed continuous metallic strips 11. The strips are inserted in the slots b, sheared off by a member 12, c, bent into V-shape by a punch 13, d, the top parts are bent over by a slide 14, e, and a punch 15 raises the strips to cause further bending over of the top parts so that they overlap and engage the other ends of the strips, f, while each forming a projecting part to enable fixing of the carrier 1 in a printed circuit board (see Figs. 1-4, not shown).
Patent GB-482716-A (GB)
Title: Improvements in or relating to the automatic limiting of the filling of aircraft motor cylinders
IPC: F02D9/00
Filed: 1936-10-01
Abstract: 482,716. Fluid-pressure servomotorcontrol systems. SCHIMANEK, E. Oct. 1, 1936, No. 26675. Convention date, Oct. 1, 1935. [Class 135] In supercharged aircraft engines the filling of the cylinders is automatically limited by a throttle valve 17 arranged in the induction pipe 18 between the supercharger and the manually controlled engine throttle 59. This throttle is controlled through a servomotor 12 and pilot valve 8 by, first, a device directly responsive to atmospheric pressure to give a coarse regulation and comprising a piston 49 acted upon by the pressure of the atmosphere and a spring 50 on one side and by a constant pressure on the over side in a chamber 26, and, secondly, by a device responsive to. the charging pressure in the induction pipe to give a fine regulation, and comprising a second piston 2 acted upon by the charging pressure from the chamber 24 in the induction pipe. The pistons 49 and 2 are connected up by a floating-lever system 52, 5, 56 with the pilot valve 8 and the piston 13 of the servomotor enabling a follow-up action to be obtained. In a modified arrangement, a single throttle valve is employed and operated by a differential gear mechanism, one side of which is coupled to the manual control and the other side being coupled to the automatic limitation means. A manual over-riding device is also provided so that a momentary supercharging above the desired limiting value is possible for certain purposes. This device may also effect an enrichment of the fuel mixture under these conditions.
Patent GB-788017-A (GB)
Title: Improvements in or relating to methods of brazing aluminum alloys
IPC: B23K35/28
Filed: 1955-09-19
Abstract: 788,017. Brazing. ZARGES, W. Sept. 19, 1955 [Sept. 17, 1954], No. 26759/55. Class 83 (4). In brazing structural parts of an aluminium alloy containing manganese less than 1 per cent magnesium 0.8 per cent or less and silicon less than 1 per cent, a brazing metal of the aluminium and silicon eutectic is applied to the parts as a coating and brazing is effected in a furnace or salt bath at a temperature of 575- 605 ‹C. The solder may be rolled upon the parts which may be of an alloy containing 0.6 per cent manganese 0.65 per cent magnesium and 0.75 per cent silicon. The parts which are amenable to precipitation-hardening heat treatment are spray hardened by quenching after removal from the furnace or salt bath and when they have cooled to 560-570‹ C.
Patent GB-1338275-A (GB)
Title: Process for making a polyurethane foam
IPC: C08G18/18
Filed: 1971-04-19
Abstract: 1338275 Polyurethane foam DOW CHEMICAL CO 19 April 1971 [9 April 1970] 26790/71 Heading C3R Polyurethane foam is prepared by reaction of a polyether polyol and polyisocyanate in the presence of a blowing agent and a catalytic amount of a polyamide in which each R is independently a C 1-6  alkyl radical or the two are joined together to form a C 3-6  heterocyclic ring; R<SP>1</SP> is a divalent hydrocarbon radical. Examples of suitable catalysts are dimethylaminopropylamine, diethylaminoethylamine and N-(2-aminoethyl) aziridine.
Patent GB-1283325-A (GB)
Title: Sighting devices
Inventor: STECK WILLIAM F
IPC: F41G1/30
Filed: 1971-04-19
Abstract: 1283325 Sights and methods of sighting W R WEAVER CO 19 April 1971 [5 May 1970] 26811/71 Heading F3C [Also in Divisions C4 and G2] A sighting device, e.g. for use with shotguns, comprises a housing, means on the housing defining a field of view in which a target 42 can be sighted, a tubular member 16 pivotally mounted in the housing, having a hollow interior forming a darkened chamber, a reticle mounted on the tubular member including a member 30 of coloured, preferably orange, fluorescent acrylic polymer material having a relatively large longitudinal dimension, and a relatively small thickness, one end wall 32 of the member 30 extending into the darkened chamber, means 10 on the housing operative to expose the member 30 to ambient light, a partial reflector 40, e.g. a dichroic reflector, and a reflector 44 mounted on the housing and so positioned relative to the field of view that in use an image of the reticle endwall is seen superimposed on the target. The arrangement may be as shown, or alternatively (Fig. 9, not shown), the tubular member and the means defining a field of view may be interchanged. The member 30 may be coiled (Fig. 7, not shown) or plate-like (Fig. 8, not shown). The member 16 may be rotatable in two perpendicular directions against spring 22 by screws such as 24.
Patent GB-139738-A (GB)
Title: Improvements in or relating to steam superheaters
IPC: F22G7/14
Filed: 1919-10-31
Abstract: 139,738. Yarrow, H. E. Oct. 31, 1919. Dampers for controlling superheaters.-A watertube boiler is provided with a superheater having an auxiliary heating device and controlled by a damper which varies the amount of superheat without varying the fuel consumed. A boiler of the Yarrow type having a steam drum A, water drums B, B<1>, and generating tubes C, C<1> is provided with a tubular superheater F connected to a header E. An auxiliary oil burner H is provided. The uptake I contains an air-cooled damper K so that the draft may be varied and consequently the amount of superheat. Part of the hot gas from the burner H is then diverted across the tubes C, C<1> to the uptake I<1>. Alternatively, the superheating may be controlled by the damper and auxiliary burner jointly, the two being connected by mechanical means.
Patent GB-264923-A (GB)
Title: Improvements in methods of affixing panels and eyelets in fabric surfaces, particularly for use in aircraft construction
IPC: B64C3/26
Filed: 1925-10-28
Abstract: 264,923. Woods, L. R. Oct. 28, 1925. Drawings to Specification. Combining sheet material. - Inspection panel frames and ventilation and drainage eyelets for aircraft and other fabric surfaces are made of a material such as cellulose acetate which becomes adhesive when applied to the surface in process of being doped. The fabric within the frame or eyelet is then cut away, and in the case of an inspection panel is covered by a fabric patch secured by doping. This patch may have fringed edges.
Patent GB-503500-A (GB)
Title: Improvements in and relating to tubes of cellulosic material and methods of making the same
IPC: B29C53/58
Filed: 1937-10-05
Abstract: 503,500. Cellulose collapsable tubes. BROSETTE, A. Oct. 5, 1937, No. 27009. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 6, 1938.] [Class 99 (ii)] [Also in Group XVII] A tube for containing liquid, plastic or powdery materials comprises layers of cellulosic material coated with a waterproof material, the layers being united by an adhesive with the aid of a solvent for the cellulose or the coating which is preferably contained in the adhesive. For example, a sheet of acetyl cellulose is coated on one or both sides with a mixture of kollodium elasticum, traumaticin and benzyl alcohol, and then on one side with a solution of a polymerization product such as polyacrylic acid ester or guttapercha in a volatile solvent. A pigment such as aluminium powder may be added.
Patent GB-639122-A (GB)
Title: Method and means for obtaining a photograph giving the appearance of relief
IPC: G03B35/24
Filed: 1946-09-09
Abstract: 639,122. Stereoscopic photography. GOBERT, R. Sept. 9, 1946, No. 27031. Convention date, Sept. 12, 1945. [Class 98 (ii)] Method of recording photographs giving an appearance of relief employing a stationary camera consists in causing a light-sensitive surface and a lenticular screen placed in front of it to pivot together about a vertical axis through the light-sensitive surface in synchronism both with the traversal across the camera objective of a slit diaphragm and with the pivotal movement of the objective about a vertical axis, the said objective having a diameter greater than the interocular distance, As shown, the camera houses at 2 an objective 21 carried by an arm 23 pivoted at 22a and spring-urged against a cam 24, a spring blind shutter 17 tensioned by rotating the lever 5 so that the blind is wound on to the roller 18 by a spring in this roller until the blind slit 20 is in the position shown, and at 2, a frame 30 for supporting a light-sensitive plate and lenticular screen pivoted on trunnions 29 and having a channelled member 38 in which moves a pin 31 engaged by the sides of a fork 27a carried by a slidably movable block 27 which also carries a rack 14. To make an exposure an antinous release 10 is operated to release a compression spring, housed at 9, which drives a pin 6 secured to the block 27 along a slot 8 (Fig. 1, not shown), thereby (i) rotating the frame 30 anticlockwise, (ii) causing the rack 14 to rotate a pinion 13 on a ledge 35 carried by the chamber 3 so as to rotate by means of an antinous cable the cam 24 and so cause the objective to pivot clockwise, and (iii) driving, by means of gears 15, 12 the roller 44 of the spring blind shutter against the action of the spring in the- -roller 18 to make the exposure. The speed of these movements is controlled by a mechanical or hydraulic governor (not shown) operating on the pin 6. The camera is focused by means of a ground glass screen by moving a rack 32 secured between the chamber 3 and objective housing 2. This focusing adjustment causes the rack 32 to rotate pinions 34, 42 carried by the member 35, and by worms 36, 37 coaxial with the pinions working in threaded holes in a member 45 in which the pin 31 is slidably secured, the initial position of the frame 30 and hence amplitude of its pivotal movement is simultaneously varied. During focusing, the shutter unit may be moved clear of the objective by rotating a crank 26 which causes the shutter to pivot about a pin 25.